History of Hydrocarbon

	Revision 7 . . December 1, 2001 5:11 pm by Taw [polish wiki has better article about this, translated it to english]
	Revision 6 . . September 30, 2001 6:58 pm by Carey Evans [remove duplicated title, tweak grammar]

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Difference (from prior major revision) (no other diffs)

Changed: 1c1,2

A hydrocarbon is a chemical compound consisting only of carbon and hydrogen.

A hydrocarbon is an organical chemical compound consisting only of carbon and hydrogen. They all consist of carbon backbone and atoms of hydrogen attached to that backbone.

Changed: 3c4,7

Geologically-extracted hydrocarbons are referred to as petroleum (literally "rock oil") and are a significant source of fuel and raw material as a feedstock? for the production of [organic chemical]?s.

There are basically three types of hydrocarbons: saturated hydrocarbons, which don't have double, triple or aromatic bonds, [unsaturated hydrocarbons]?, which have one or more double or triple bonds between carbon atoms, and aromatic hydrocarbons, which have at least one [aromatic ring]? in addition to whatever bonds they have.

Changed: 5c9,13

The simplest forms of hydrocarbon, in terms of structure and bonding, are the linear alkanes. More complex structures are found in cyclic alkanes and in aromatic hydrocarbons.

Unsaturated hydrocarbons are divided to: * alkenes * allenes * alkynes * dienes

Changed: 7c15,17

Geologically-extracted hydrocarbons are referred to as petroleum (literally "rock oil") and are a significant source of fuel and raw material as a feedstock? for the production of [organic chemicals]?.